// 打印类属性、方法定义
/* eslint-disable */
const Print = function (dom, options) {
  if (!(this instanceof Print)) return new Print(dom, options);
  this.options = this.extend({
  'noPrint': '.no-print'
  }, options);
  if ((typeof dom) === "string") {
  this.dom = document.querySelector(dom);
  } else {
  this.isDOM(dom)
  this.dom = this.isDOM(dom) ? dom : dom.$el;
  }
  this.init();
  };
  Print.prototype = {
  init: function () {
  var content = this.getStyle() + this.getHtml();
  this.writeIframe(content);
  },
  extend: function (obj, obj2) {
  for (var k in obj2) {
  obj[k] = obj2[k];
  }
  return obj;
  },
  getStyle: function () {
  var str = "",
  styles = document.querySelectorAll('style,link');
  for (var i = 0; i < styles.length; i++) {
  str += styles[i].outerHTML;
  }
  str += "<style>" + (this.options.noPrint ? this.options.noPrint : '.no-print') + "{display:none;}</style>";
  return str;
  },
  getHtml: function () {
  var inputs = document.querySelectorAll('input');
  var textareas = document.querySelectorAll('textarea');
  var selects = document.querySelectorAll('select');
  for (var k = 0; k < inputs.length; k++) {
  if (inputs[k].type == "checkbox" || inputs[k].type == "radio") {
  if (inputs[k].checked == true) {
  inputs[k].setAttribute('checked', "checked")
  } else {
  inputs[k].removeAttribute('checked')
  }
  } else if (inputs[k].type == "text") {
  inputs[k].setAttribute('value', inputs[k].value)
  } else {
  inputs[k].setAttribute('value', inputs[k].value)
  }
  }
  for (var k2 = 0; k2 < textareas.length; k2++) {
  if (textareas[k2].type == 'textarea') {
  textareas[k2].innerHTML = textareas[k2].value
  }
  }
  for (var k3 = 0; k3 < selects.length; k3++) {
  if (selects[k3].type == 'select-one') {
  var child = selects[k3].children;
  for (var i in child) {
  if (child[i].tagName == 'OPTION') {
  if (child[i].selected == true) {
  child[i].setAttribute('selected', "selected")
  } else {
  child[i].removeAttribute('selected')
  }
  }
  }
  }
  }
  return this.dom.outerHTML;
  },
  writeIframe: function (content) {
  var w, doc, iframe = document.createElement('iframe'),
  f = document.body.appendChild(iframe);
  iframe.id = "myIframe";
  //iframe.style = "position:absolute;width:0;height:0;top:-10px;left:-10px;";
  iframe.setAttribute('style', 'position:absolute;width:0;height:0;top:-10px;left:-10px;');
  w = f.contentWindow || f.contentDocument;
  doc = f.contentDocument || f.contentWindow.document;
  doc.open();
  doc.write(content);
  doc.close();
  var _this = this
  iframe.onload = function(){
  _this.toPrint(w);
  setTimeout(function () {
  document.body.removeChild(iframe)
  }, 100)
  }
  },
  toPrint: function (frameWindow) {
  try {
  setTimeout(function () {
  frameWindow.focus();
  try {
  if (!frameWindow.document.execCommand('print', false, null)) {
  frameWindow.print();
  }
  } catch (e) {
  frameWindow.print();
  }
  frameWindow.close();
  }, 10);
  } catch (err) {
  console.log('err', err);
  }
  },
  isDOM: (typeof HTMLElement === 'object') ?
  function (obj) {
  return obj instanceof HTMLElement;
  } :
  function (obj) {
  return obj && typeof obj === 'object' && obj.nodeType === 1 && typeof obj.nodeName === 'string';
  }
  };
  const MyPlugin = {}
  MyPlugin.install = function (Vue, options) {
  // 4. 添加实例方法
  Vue.prototype.$print = Print
  }
  export default MyPlugin